Even after seven consecutive weeks at the top of the nonfiction bestseller list, publishers are still puzzled about the success of the 9/11 Commission Report.
A word-for-word reprint of a government panel report -- the 516-page paperback -- is not the kind of item that usually tops off the nation's reading list. Moreover, like most government documents, it's available online for free.
Nonetheless, rather than turn solely to the commission's website to download the report, more than 600,000 people have instead paid $10 or so for a printed copy. For the report's official publisher, W.W. Norton & Co., it's been an unexpected windfall.